dma-debug: add checking for map/unmap_page/single

Impact: add debug callbacks for dma_{un}map_[page|single]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index 345d5387a30d..65f73526ba2c 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -28,12 +28,35 @@ struct device;
 
 extern void dma_debug_init(u32 num_entries);
 
+extern void debug_dma_map_page(struct device *dev, struct page *page,
+                               size_t offset, size_t size,
+                               int direction, dma_addr_t dma_addr,
+                               bool map_single);
+
+extern void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
+                                 size_t size, int direction, bool map_single);
+
+
 #else /* CONFIG_DMA_API_DEBUG */
 
 static inline void dma_debug_init(u32 num_entries)
 {
 }
 
+static inline void debug_dma_map_page(struct device *dev, struct page *page,
+                                      size_t offset, size_t size,
+                                      int direction, dma_addr_t dma_addr,
+                                      bool map_single)
+{
+}
+
+static inline void debug_dma_unmap_page(struct device *dev, dma_addr_t addr,
+                                        size_t size, int direction,
+                                        bool map_single)
+{
+}
+
+
 #endif /* CONFIG_DMA_API_DEBUG */
 
 #endif /* __DMA_DEBUG_H */